Product Range

SUMIPEX®

It is renowned for its excellent clarity, weather resistance, and superb optical properties, and is used for a wide range of applications as a high-quality resin for products that include automobile parts, display panels (for desktop laptop monitors), extrusion sheets, optical lenses and tableware. In recent years, we have further enhanced SUMIPEX® in response to market needs by adding extra features such as greater impact, plus heat and chemical resistance to create a totally unique product line-up.

Our SUMIPEX® Range

Physical Properties

ITEMTEST METHODUNITEXTRUSIONHEAT RESISTANT
ISOJISEXMEMH
OPTICALRefractive IndexISO 489JIS K7142-1.491.491.49
Total Light TransmissionISO 13468-1JIS K7361-1%929292
HazeISO 14782JIS K7136%< 0.5< 0.5< 0.5
THERMALCoefficient of Linear ExpansionISO 11359-2JIS K71971/ ˚C7X10-57X10-57X10-5
Vicat Softening Temperature (VST)ISO 306JIS K7206 (B50)˚C104108109
Deflection Temperature Under Load 1.82 Mpa (annealed)ISO 75-2JIS K7191 (Af method)˚C9999101
Melt Flow Rate (MFR) 230 ˚C, 37.3N (3.8kgf)ISO 1133JIS K7210g/10min.1.54.22
MECHANICALTensile Strength at breakISO 572-2JIS K7162MPa747676
Tensile Strain at breakISO 572-2JIS K7162%544
Flexural StrengthISO 178JIS K7171MPa120116120
Flexural ModulusISO 178JIS K7171MPa310031003100
Charpy Impact Strength (notched)ISO 179-1JIS K7111KJ/m21.41.41.4
Rockwell Hardness Scale MISO 2039-2JIS K7202-1009595
ELECTRICALSurface ResistivityIEC 60093JIS K6911>1016>1016>1016
Volume ResistivityIEC 60093JIS K6911Ω cm>1015>1015>1015
Insulation ResistanceIEC 60167JIS K6911>1015>1015>1015
Dielectric StrengthIEC 60243-1JIS K6911kV/mm202020
Dielectric Constant (1MHz)IEC 60250JIS K6911-3.13.13.1
OTHERSSpecific GravityISO 1183JIS K7112
(A method)
-1.191.191.19
Mold ShrinkageISO 294-4ASTM D-955%0.2 -0.60.2 -0.60.2 -0.6
Water AbsorptionISO 62JIS K7209%0.30.30.3
FlammabilityUL 94-HBHBHB

* The above data are typical laboratory values and are intended to serve as guides only.

Recommended Injection Moulding Conditions

 MH / ME
PRE-DRYING CONDITIONSTemp. ˚C80 - 90
Time/Hr4 - 6
BARREL TEMP.Front ˚C240 - 260
Middle ˚C230 - 260
Back ˚C220
MOULD TEMP.˚C60 - 85
INJECTION PRESSUREMPa140 - 160
HOLD PRESSUREMPa20 - 80
BACK PRESSUREGauge MPa0.9 - 1.4
SCREW SPEEDrpm40 - 60
COOLING TIMEsec.20 - 60

Recommended Extrusion Moulding Conditions

 EX / MH
SCREW L/D30 - 35
CYLINDER TEMP. ˚CHopper Side200 - 210
Center Side230 - 240
Die Side240 - 245
DIE TEMP. ˚C235 - 245

Recommended Annealing Conditions

 EX / MH / ME
Temp. ˚C75 - 85
Time/Hr4

Application

Widely used in the automotive industry for rear tail lamps and speedometer covers. Also used for optical (sunglasses and reading glasses) lens, extrusion sheets for the manufacturing of signages and displays, sound barriers, construction applications and light guide panels for general LED lightings.

Physical Properties

ITEMTEST METHODUNITOPTICAL
ISOJISMHNEXNMG5MGSSMGSV
OPTICALRefractive IndexISO 489JIS K7142-1.491.491.491.491.49
Total Light TransmissionISO 13468-1JIS K7361-1%9292929292
HazeISO 14782JIS K7136%< 0.5< 0.5< 0.5< 0.5< 0.5
THERMALCoefficient of Linear ExpansionISO 11359-2JIS K71971/ ˚C7X10-57X10-57X10-57X10-57X10-5
Vicat Softening Temperature (VST)ISO 306JIS K7206 (B50)˚C109104106106103
Deflection Temperature Under Load 1.82 Mpa (annealed)ISO 75-2JIS K7191 (Af method)˚C10199999692
Melt Flow Rate (MFR) 230˚C, 37.3N (3.8kgf)ISO 1133JIS K7210g/10min.2.51.551120
MECHANICALTensile Strength at breakISO 527-2JIS K7162Mpa7674756370
Tensile Strain at breakISO 527-2JIS K7162%45322
Flexural StrengthISO 178JIS K7171Mpa1201201159494
Flexural ModulusISO 178JIS K7171Mpa31003100310031003100
Charpy Impact Strength (notched)ISO 179-1JIS K7111KJ/m21.41.41.41.31.1
Rockwell Hardness Scale MISO 2039-2JIS K7202-100100959595
ELECTRICALSurface ResistivityIEC 60093JIS K6911>1016>1016>1016>1016>1016
Volume ResistivityIEC 60093JIS K6911Ω cm>1015>1015>1015>1015>1015
Insulation ResistanceIEC 60167JIS K6911>1015>1015>1015>1015>1015
Dielectric StrengthIEC 60243-1JIS K6911kV/mm2020202020
Dielectric Constant (1MHz)IEC 60250JIS K6911-3.13.13.13.13.1
OTHERSpecific GravityISO 1183JIS K7112
(A method)
-1.191.191.191.191.19
Mold ShrinkageISO 294-4ASTM D-955%0.2 -0.60.2 -0.60.2 -0.60.2 -0.60.2 -0.6
Water AbsorptionISO 62JIS K7209%0.30.30.30.30.3
FlammabilityUL 94-HBHBHBHBHB

*The above data are typically laboratory values and are intended to serve as guides only.

Recommended Injection Moulding Conditions

 MGSSMGSVMG5
PRE-DRYING CONDITIONSTemp. ˚C80 - 8570 - 8080 - 90
BARREL TEMP.Time/Hr4 - 64 - 64 - 6
Front ˚C220 - 235225 - 245240 - 260
Middle ˚C215 - 225220 - 240230 - 260
Back ˚C210210 - 220220
MOULD TEMP.˚C60 - 8560 - 8560 - 85
INJECTION PRESSUREMPa140 - 160140 - 160140 - 160
HOLD PRESSUREMPa20 - 8020 - 10020 - 80
BACK PRESSUREGauge MPa0.9 - 1.41.1 - 1.40.9 - 1.4
SCREW SPEEDRpm40 - 6030 - 7040 - 60
COOLING TIME Sec.20 - 6020 - 6020 - 60

Recommended Extrusion Moulding Conditions

 EX / MHN
SCREW L/D30 - 35
CYLINDER TEMP. ˚CHopper Side200 - 210
Center Side230 - 240
Die Side240 - 245
DIE TEMP. ˚C235 - 245

Recommended Annealing Conditions

 MHN / EXN / MG5 / MGSS / MGSV
Temp. ˚C75 - 85
Time/Hr4

Application

Most commonly used material in the production of light guide panels for electronic displays such as LED televisions, monitors, notebooks and tablets.

Introduction and Application of EP Grade

EP is a grade with unique characteristics. Though it has a lower melt flow rate compared to typical SUMIPEX® PMMA grades, it has a higher spiral flow length, meaning that it is ideal for both injection and extrusion usage. To add on, this grade has stronger chemical resistance in comparison to typical SUMIPEX® PMMA grades, hence it is widely used in the automotive industry for manufacturing of rear tail lamps and for applications which requires higher chemical resistance, such as cosmetic bottles and containers.

Physical Properties

ITEMTEST METHODUNITCHEMICAL RESISTANCE
ISOJISEP
OPTICALRefractive IndexISO 489JIS K7142-1.49
Total Light TransmissionISO 13468-1JIS K7361-1%92
HazeISO 14782JIS K7136%< 0.5
THERMALCoefficient of Linear ExpansionISO 11359-2JIS K71971/ ˚C7X10-5
Vicat Softening Temperature (VST)ISO 306JIS K7206 ˚C109
(B50)
Deflection Temperature Under Load 1.82 Mpa (annealed)ISO 75-2JIS K7191
(Af method)
˚C101
Melt Flow Rate (MFR) 230 ˚C, 37.3N (3.8kgf)ISO 1133JIS K7210g/10min.0.7
MECHANICALTensile Strength at breakISO 572-2JIS K7162MPa76
Tensile Strain at breakISO 572-2JIS K7162%4
Flexural StrengthISO 178JIS K7171MPa120
Flexural ModulusISO 178JIS K7171MPa3100
Charpy Impact Strength (notched)ISO 179-1JIS K7111KJ/m21.3
Rockwell Hardness Scale MISO 2039-2JIS K7202-100
ELECTRICALSurface ResistivityIEC 60093JIS K6911>1016
Volume ResistivityIEC 60093JIS K6911Ω cm>1015
Insulation ResistanceIEC 60167JIS K6911>1015
Dielectric StrengthIEC 60243-1JIS K6911kV/mm20
Dielectric Constant (1MHz)IEC 60250JIS K6911-3.1
OTHERSSpecific GravityISO 1183JIS K7112
(A method)
-1.19
Mold ShrinkageISO 294-4ASTM D-955%0.2 -0.6
Water AbsorptionISO 62JIS K7209%0.3
FlammabilityUL 94-HB

* The above data are typical laboratory values and are intended to serve as guides only.

Recommended Injection Moulding Conditions

 EP
PRE-DRYING CONDITIONSTemp. ˚C80 - 90
Time/Hr4 - 6
BARREL TEMP.Front ˚C240 - 260
Middle ˚C230 - 260
Back ˚C220
MOULD TEMP.˚C60 - 85
INJECTION PRESSUREMPa140 - 160
HOLD PRESSUREMPa20 - 80
BACK PRESSUREGauge MPa0.9 - 1.4
SCREW SPEEDRpm40 - 60
COOLING TIMESec.20 - 60

Recommended Extrusion Moulding Conditions

 EP
SCREW L/D30 - 35
CYLINDER TEMP. ˚CHopper Side200 - 210
Center Side230 - 240
Die Side240 - 245
DIE TEMP. ˚C235 - 245

Recommended Annealing Conditions

 EP
Temp. ˚C75 - 85
Time/Hr4

Physical Properties

ITEMTEST METHODUNITHIGH FLOWGENERAL
ISOJISLG2 & LG2SLG
OPTICALRefractive IndexISO 489JIS K7142-1.491.49
Total Light TransmissionISO 13468-1JIS K7361-1%9292
HazeISO 14782JIS K7136%< 0.5< 0.5
THERMALCoefficient of Linear ExpansionISO 11359-2JIS K71971/ ˚C7X10-57X10-5
Vicat Softening Temperature (VST)ISO 306JIS K7206 (B50)˚C9596
Deflection Temperature Under Load 1.82 Mpa (annealed)ISO 75-2 JIS K7191 (Af method)˚C9091
Melt Flow Rate (MFR) 230 ˚C, 37.3N (3.8kgf)ISO 1133JIS K7210g/10min.1510
MECHANICALTensile Strength at breakISO 527-2JIS K7162Mpa6872
Tensile Strain at breakISO 527-2 JIS K7162%23
Flexural StrengthISO 178JIS K7171Mpa110115
Flexural ModulusISO 178JIS K7171Mpa30003000
Charpy Impact Strength (notched)ISO 179-1JIS K7111KJ/m21.41.4
Rockwell Hardness Scale MISO 2039-2JIS K7202-9494
ELECTRICALSurface ResistivityIEC 60093JIS K6911>1016>1016
Volume ResistivityIEC 60093JIS K6911Ω cm>1015>1015
Insulation ResistanceIEC 60167JIS K6911>1015>1015
Dielectric StrengthIEC 60243-1JIS K6911kV/mm2020
Dielectric Constant (1MHz)IEC 60250JIS K6911-3.13.1
OTHERSSpecific GravityISO 1183JIS K7112
(A method)
-1.191.19
Mold ShrinkageISO 294-4ASTM D-955%0.2 -0.60.2 -0.6
Water AbsorptionISO 62JIS K7209%0.30.3
FlammabilityUL 94-HBHB

*The above data are typically laboratory values and are intended to serve as guides only.

Recommended Injection Moulding Conditions

 LG / LG2 / LG2S
PRE-DRYING CONDITIONSTemp. ˚C70 - 80
Time/Hr4 - 6
BARREL TEMP.Front ˚C225 - 245
Middle ˚C220 - 240
Back ˚C210 - 220
MOULD TEMP.˚C60 - 85
INJECTION PRESSUREMPa140 - 160
HOLD PRESSUREMPa20 - 100
BACK PRESSUREGauge MPa1.1 - 1.4
SCREW SPEEDrpm30 - 70
COOLING TIMEsec.20 - 60

Recommended Annealing Conditions

 LG / LG2 / LG2S
Temp. ˚C60 - 80
Time/Hr4

Application

Used in a wide range of products such as housewares, cosmetic bottles, lens covers for electrical appliances, ornament products and etc.

Physical Properties

ITEMTEST METHODUNITGENERAL PURPOSE (EXTRUSION & INJECTION)HIGH HEAT AND TRANSPARENCY (EXTRUION & INJECTION)HIGH FLOW AND TRANSPARENCY (INJECTION)
ISOJISHT084SHT082SHT01XHT55XHT25XHT02YHT72YHT22Y
OPTICALRefractive IndexISO 489JIS K7142-1.491.491.491.491.491.491.491.49
Total Light TransmissionISO 13468-1 JIS K7361-1%9090919293919293
HazeISO 14782JIS K7136 %1.51.51.10.90.71.10.80.6
THERMALVicat Softening
Temperature (VST)
ISO 306JIS K7206 (B50)˚C95103971031089697100
Melt Flow Rate (MFR) 230 ˚C, 37.3N (3.8kgf)ISO 1133JIS K7210g/10min.222224816
MECHANICALTensile Strength at breakISO 527-2 JIS K7162MPa3856385667384762
Tensile Strain at breakISO 527-2JIS K7162%603874381660406
Flexural ModulusISO 178JIS K7171MPa17002500180025002800140020002700
Flexural StrengthISO 178JIS K7171MPa55906490107517094
Charpy Impact Strength (notched)ISO 179-1JIS K7111KJ/m27.03.85.63.81.85.64.21.4
ELECTRICALSurface ResistivityIEC 60093JIS K6911>1016>1016>1016>1016>1016>1016>1016>1016
Volume ResistivityIEC 60093JIS K6911Ω cm >1015>1015>1015>1015>1015>1015>1015>1015
Insulation ResistanceIEC 60167JIS K6911>1015>1015>1015>1015>1015>1015>1015>1015
Dielectric StrengthIEC 60243-1JIS K6911kV/mm2020202020202020
Dielectric Constant (1MHz)IEC 60250JIS K6911-3.13.13.13.13.13.13.13.1
OTHERSpecific GravityISO 1183JIS K7112
(A method)
-1.161.171.151.171.181.151.171.18
Mold ShrinkageISO 294-4JIS K7152-4%0.4 - 0.70.4 - 0.70.4 - 0.70.4 - 0.70.4 - 0.70.4 - 0.70.4 - 0.70.4 - 0.7
Water AbsorptionISO 62JIS K7209%0.40.40.40.40.30.40.40.3

* The above data are typical laboratory values and are intended to serve as guides only.

* If you hope to use these grades to food and/or medical matter, please consult with us.

Additional Information

Outstanding Properties of SUMIPEX®
  • Unparalleled Transparency and Lustre
  • Excellent Weather Resistance
  • Unmatched Surface Hardness
  • Excellent Electrical Resistance
  • Superior Mechanical Property
  • Harmless to Humans
  • Environmentally-Friendly, Easy to Recycle

Comparison of Spiral Flow Length

Comparison of Chemical Resistance

Comparison of SUMIPEX® with Other Transparent Resins

Sumitomo_Charts1
Sumitomo_Charts3

SUITABLE FOR SUMIPEX®UNSUITABLE FOR SUMIPEX®
Aliphatic HydrocarbonChlorinated Aliphatic Hydrocarbon
Oils and FatsAromatic Hydrocarbon
Inorganic Salt SolutionAlicyclic Hydrocarbon
GasKetone
Dilute AcidAlcohol
AlkaliEther
Dilute AlcoholEster
Antifreeze LiquidMethylene Chloride, Chloroform, Carbon Tetrachloride
Paraffin, HexaneBenzene, Toulene, Xylene
Turpentine Oil, Olive OilCyclohexane
Salt WaterAcetone, MEK
Oxygen, Nitrogen, Carbon DioxideMethyl Alcohol
Dilute Hydrochloric Acid, 30% Sulfuric AcidDiethyl Ether
Sodium Carbonate, Sodium HydroxidePlasticizer (DOP, DBP, ETC), Ethyl Acetate
10% Methyl Alcohol
Ethylene Glycol

* This list may not be exhaustible and is intended to serve as a general guideline only.

The below standards/certifications have been tested on specific SUMIPEX® grades only.

  • UL Standard
  • RoHs (Restriction of Use of Hazardous Substances) [Directive 2002/95/EC]
  • With reference to U.S. 21 CFR Food and Drug Administration (Part 177.1010 Clause B)
  • Automotive Safety Standard (FMVSS) [USA]
  • AMECA [MH and ME grade for clear, red, yellow, grey and brown]

* Please refer to AMECA list for more details

Ul: Underwriters laboratories
FMVSS: Federal Motor Vehicle Safety Standard
SAE: Society of Automotive Engineers, Inc.

3

25Kg Paper Bag & resin Bag

1

750Kg Flexicon Bag

2

19,000Kg Seabulk Bag

To achieve optimal quality in moulded products, please take note of the following.

Dust Prevention

  • Handle SUMIPEX® in a clean/dust-free environment.
  • When opening bag, take special care to prevent foreign matters from entering the bag.

Contamination Prevention

  • All equipment and parts (E.g. hopper, dryer, barrel, screw, nozzle, etc.) should be thoroughly cleaned before coming into contact with SUMIPEX®.

Moisture Prevention

  • SUMIPEX® should be stored in a dry environment.

SUMIPEX® is a thermoplastic, and is flammable and soluble in organic solvents. Before using SUMIPEX®, please refer to the Safety Data Sheet (SDS) separately prepared by us.

The following information are general precautions and guidelines in the handling and storage of SUMIPEX®.

Health and Safety
During the operations of drying and processing of SUMIPEX®, local exhaust ventilation and personal protective equipment (eye goggle, gloves, respirator etc.) are necessary.

  • SUMIPEX® releases gases due to drying, melting and thermal decomposition. Avoid inhaling and contact with eyes and skin.
  • Do not touch hot resin directly.
  • If feeling unwell due to inhalation, rest in a well-ventilated place and if necessary, consult a doctor.

Flammability
Do not use/place SUMIPEX® near flames and other sources of ignition.

  • SUMIPEX® is flammable. Should it catch fire, toxic gases containing Carbon Monoxide can be generated due to incomplete combustion.
  • In case of fire, use water, carbon dioxide or foam/powder extinguishing media to put out the fire.

Disposal
For disposal of SUMIPEX®, engage an authorised contractor or consult the relevant local government agencies. Disposal should be conducted in accordance with state and local regulations.

Storage

  • SUMIPEX® should be stored in accordance with state and local regulations.
  • In case of spillage, remove pellets immediately to prevent potential slipping hazard.
  • SUMIPEX® should be kept away from direct sunlight, water and moisture and bestored at ambient temperature.

Others
All technical information and data in this brochure are believed to be accurate and reliable. However, we do not guarantee results, freedom from patent infringement, or suitability of our products for any resultant application.

* This information is prepared based on the materials, information and data currently available to us. Revisions will be made when new knowledge or information is obtained.

* All data presented on our diagrams, tables and charts are typical laboratory values and are intended to serve as guides only.

We have now entered an era in which greater importance is being placed on environmental issues. In addition to its benign physical properties as a methacrylate resin, SUMIPEX® contributes to conservation of resources through its prolonged and incomparable weather resistance, serving its many applications for long periods of time. Moreover, SUMIPEX® at high yields can be reduced to its monomer form through thermal decomposition, then chemically recycled and utilised as a raw material for new resin production. Furthermore, no particularly harmful gases, such as dioxins, are produced when waste resins are incinerated, as the resins do not contain halogens. Under normal combustion conditions, SUMIPEX® breaks down completely into water and carbon dioxide; adding only minimum burden on the environment. People have been using methacrylate resins ever since the beginning of their commercial production in the 1940s. This versatile plastic is still being used in myriad applications, even into the 21st century – the century of the environment – due to its outstanding characteristics.

* All data presented on our diagrams, tables and charts are typical laboratory values and are intended to serve as guides only.